var format = require('format')
, printf = format.printf
, vsprintf = format.vsprintf
// or if you want to keep it old school
, sprintf = format
// Print 'hello world'
printf('%s world', 'hello')
var what = 'life, the universe, and everything'
format('%d is the answer to %s', 42, what)
// => '42 is the answer to life, the universe, and everything'
vsprintf('%d is the answer to %s', [42, what])
// => '42 is the answer to life, the universe, and everything'